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comparison src/os_cpu/windows_x86/vm/os_windows_x86.cpp @ 11127:980532a806a5

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8016697: Use stubs to implement safefetch Summary: Implement Safefetch as stub routines. This reduces compiler and os dependencies. Reviewed-by: twisti, kvn
author goetz
date Thu, 20 Jun 2013 15:02:05 +0200
parents 12285410684f
children 6b0fd0964b87 38f750491293
comparison
equal deleted inserted replaced
11088:ea4d24c1e0c6 11127:980532a806a5
516 #endif 516 #endif
517 517
518 st->cr(); 518 st->cr();
519 } 519 }
520 520
521 extern "C" int SafeFetch32 (int * adr, int Err) {
522 int rv = Err ;
523 _try {
524 rv = *((volatile int *) adr) ;
525 } __except(EXCEPTION_EXECUTE_HANDLER) {
526 }
527 return rv ;
528 }
529
530 extern "C" intptr_t SafeFetchN (intptr_t * adr, intptr_t Err) {
531 intptr_t rv = Err ;
532 _try {
533 rv = *((volatile intptr_t *) adr) ;
534 } __except(EXCEPTION_EXECUTE_HANDLER) {
535 }
536 return rv ;
537 }
538
539 extern "C" int SpinPause () { 521 extern "C" int SpinPause () {
540 #ifdef AMD64 522 #ifdef AMD64
541 return 0 ; 523 return 0 ;
542 #else 524 #else
543 // pause == rep:nop 525 // pause == rep:nop